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fcb0d8163a
LLDB tests assume that tests are in the test tree (the `LLDB_TEST_SRC` env variable, configured by `dotest.py`). If this assertion doesn't hold, tests fail in strange ways. An early place this goes wrong is in `compute_mydir` which does a simple length-based substring to get the relative path. Later, we use that path to chdir to. If the test file and test tree don't agree in realpath-ness (and therefore length), this will be a cryptic error of chdir-ing to a directory that does not exist. The actual discrepency is that the places we look for `use_lldb_suite.py` don't use a realpath, but `dotest.py` does (see initialization of `configuration.testdirs`). It doesn't particularly matter whether we use realpath or abspath to canonicalize things, but many places end up with implicit dependencies on the canonicalized pwd being a realpath, so make them realpath consistently. Also, in the `compute_mydir` method mentioned, raise an error if the path types don't agree. Reviewed By: JDevlieghere Differential Revision: https://reviews.llvm.org/D85258
28 lines
725 B
Python
28 lines
725 B
Python
import inspect
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import os
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import sys
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def find_lldb_root():
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lldb_root = os.path.realpath(
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os.path.dirname(inspect.getfile(inspect.currentframe())))
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while True:
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parent = os.path.dirname(lldb_root)
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if parent == lldb_root: # dirname('/') == '/'
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raise Exception("use_lldb_suite_root.py not found")
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lldb_root = parent
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test_path = os.path.join(lldb_root, "use_lldb_suite_root.py")
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if os.path.isfile(test_path):
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return lldb_root
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lldb_root = find_lldb_root()
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import imp
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fp, pathname, desc = imp.find_module("use_lldb_suite_root", [lldb_root])
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try:
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imp.load_module("use_lldb_suite_root", fp, pathname, desc)
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finally:
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if fp:
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fp.close()
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